class vs biology

class and biology both are nouns.

Word	Noun	Adjective	Verb	Adverb
class	Yes	No	Yes	No
biology	Yes	No	No	No

class (noun)	biology (noun)
education imparted in a series of lessons or meetings	the science that studies living organisms
elegance in dress or behavior	all the plant and animal life of a particular region
a collection of things sharing a common attribute	characteristic life processes and phenomena of living organisms
people having the same social, economic, or educational status
(biology) a taxonomic group containing one or more orders
a body of students who are taught together
a body of students who graduate together
a league ranked by quality

class (verb)	biology (verb)
arrange or order by classes or categories